In recent years, the energy supply problem of wearable electronic equipment has become a topic of increasing concern. It is necessary to develop energy storage equipment with environmental protection, flexibility, a light quality and excellent performance. In this work, a solid, flexible and symmetrical supercapacitor based on graphene coated cotton fabric was fabricated. The flexible electrode materials were prepared through an environmentally friendly “dry-coating” method and subsequent “two step reduction” method of chemical and microwave reduction, the method is simple and convenient. The morphology and structure of prepared flexible electrode materials were characterized by scanning electron microscopy, X-ray diffraction, and Raman spectrometry. The supercapacitor was assembled in a sandwich structure and packaged and its electrochemical performance was investigated. The flexible sandwich structure (FSS) supercapacitor exhibits high capacitance (464 F g ~(?1) at 0.25 A g ~(?1) ), good cycling stability (91.6% capacitance retention after 1000 charge and discharge cycles) and excellent electrochemical stability. This supercapacitor with easy fabrication, flexible and excellent electrochemical performance has potential to be used as a wearable device.
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机译：近年来，可穿戴电子设备的能量供应问题已经成为越来越受到关注的话题。有必要开发一种环保，灵活，轻质，性能优良的储能设备。在这项工作中，制造了一种基于石墨烯涂层棉织物的固体，柔性和对称超级电容器。柔性电极材料是通过环保的“干涂”方法以及随后的化学和微波还原“两步还原”方法制备的，该方法简单方便。制备的柔性电极材料的形貌和结构通过扫描电子显微镜，X射线衍射和拉曼光谱法表征。将超级电容器组装成三明治结构并包装，并研究其电化学性能。柔性夹层结构（FSS）超级电容器具有高电容量（在0.25 A g〜（？1）时为464 F g〜（？1）），良好的循环稳定性（经过1000次充放电循环后的电容保持率为91.6％）和出色的电化学稳定性。这种具有易于制造，柔性和优异电化学性能的超级电容器具有用作可穿戴设备的潜力。
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